Sash-fastener.



B. KARGR. SASH FASTENER. APPLIOATION FILED Nov. 9, 1912.

Patented Dec. 30, 1913..v

UNITED STATES PrMTENT OFFICE.

BERNHARD KARGER, OF STAUNTON, ILLINOIS.

SASI-I-FASTENER.

To all whom t may concern Be it known that I, BERNHARD KARGER, a citizen of the United States, residing at Staunton, in the county of Macoupin, State of Illinois, have invented certain new and useful Improvements in Sash-Fasteners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in window attachments, and particularly to a sash fastener therefor.

rIhe principal object is to provide a simple device of this character which is automatic in its operation to lock the upper and lower sashes together, when in closed posit-ion.

Another object resides in the construct-ion and arrangement of the parts whereby the device may be quickly and easily unlocked when desired.

Other objects and advantages will be apparent from the following description and with particular reference to the accompanying drawings.

In the drawings: Figure 1 is an elevat-ion of a portion of the upper and lower sashes of a window showing my invention attached, Fig. 2 is a plan View of the device, Fig. 3 is a transverse sectional view on the line 3 3 of Fig. 2, Fig. 4 is a vertical sectional view on the line 4--4 ofFig. 2.

Referring particularly to the accompanying drawings, 10 represents the base portion of one member of my sash fastener. This base has laterally extending attaching flanges 11 which are adapted to be secured to the upper face of the upper rail of the lower window sash. Extending vertically from the center of the base is a housing 12, open at the top and at one end, as indicated, respectively at 13 and 14.

Disposed in the housing 12 is a substantially L-shaped locking member 15, having one of its ends pivotally mounted on a pin 1G disposed transversely of the housing in the lower front portion thereof. The end of the portion 17 projects through the opening 14 in the housing and is adapted to engage with the inclined face 18 and engage in the notch 19, formed in a vertical member 20, formed on a base 21, secured to the lower rail of the upper sash.

Specication of Letters Patent.

Application led November 9, 1912.

Patented Dec. 30, 1913.

Serial No. 730,376.

A U-shaped spring 22 is disposed in the housing between the rear wall and the L-shaped member 15, one end of said spring being secured to the upper portion of the member 15, while the other end is provided with a thumb-piece 23, by means of which pressure upon the thumb-piece 23, will cause the connecting or doubled portion 24 to push the pivoted member 15 below its pivot, and rock the said member to withdraw its member 17 from the notch 19. `When so released the lower sash may be raised. Vhen the lower sash is pulled down to closed position, the end 17 of the member 15 will engage the inclined face 1S and cause the member to be rocked within the housing 12. When the said end 17 comes opposite the notch 19 the said end will spring into the said notch by' virtue of the spring 22 and hold the member securely in locked position.

VJhat is claimed is:

1. In a sash fastener, a base member secured to the upper rail of the lower sash, a housing opened at its upper side and one end, an L-shaped member pivoted in the housing and having one end projecting through the opening in the housing, a U-shaped spring disposed in the housing and projecting through the upper opening thereof, one end of the spring being secured to the upper portion of the pivoted member, the other end of the spring projecting through the upper side of the housing and provided with a thumb-piece, and a member secured to the lower rail of the upper sash comprising a base, on which is mounted a vertically extending member having a notch for receiving the projecting end of the pivoted member, and an inclined face above the notch.

2. A mechanical movement, comprising a support, a pivoted member mounted on the support, and a leaf spring doubled on itself attached at one of its ends to the pivoted member and bearing slidably with its other end against the stationary support, whereby u pon longitudinal pressure being exerted on the unattached portion of the spring, the attached portion will move the pivoted member toward the unattached portion of the spring.

3. A. mechanical movement, comprising a movable part and a stationary part, and a U-shaped spring having one of its arms attaelied to the movable member and the other arm bearing slidably against the stationary support, the attached end of the spring be ing arranged to draw the pivoted member toward the unattached end of the spring upon longitudinal slidable movement being imparted to the unattached end.

In testimony whereof I affix my signature in the presence of two Witnesses.

BERNHARD KARGER.

itnesses MATH. REINGER, WILLIAM HARVEY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

